PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

659Z0252Sleeve,shaft,pump

Circor Naval Solutions Llc Dba Warren Pumps · NSN 4320-00-394-2532 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-394-2532 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-394-2532. Primary manufacturer part number: 659Z0252.
Features
  • Sleeve,shaft,pump — FSC 4320
  • Left Internal Flange Width: 0.5625 INCHES NOMINAL IN
  • Body Inside Diameter: 2.6250 INCHES NOMINAL IN
  • Left Internal Flange Hole Diameter: 1.7656 INCHES NOMINAL IN
  • Body Outside Diameter: 3.1200 INCHES NOMINAL IN
  • Keyway Dimension: 0.2188 INCHES NOMINAL INTERNAL KEYWAY DEPTH IN
  • Corner Shape: CHAMFERED INSIDE RIGHT CORNER
  • Corner Shape: CHAMFERED OUTSIDE RIGHT CORNER
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Sleeve,shaft,pump, cataloged under National Stock Number 4320-00-394-2532, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Circor Naval Solutions Llc Dba Warren Pumps. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-394-2532
Primary Part Number659Z0252
Item NameSleeve,shaft,pump
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCircor Naval Solutions Llc Dba Warren Pumps
StatusACTIVE
Left Internal Flange Width0.5625 INCHES NOMINAL IN
Body Inside Diameter2.6250 INCHES NOMINAL IN
Left Internal Flange Hole Diameter1.7656 INCHES NOMINAL IN
Body Outside Diameter3.1200 INCHES NOMINAL IN
Keyway Dimension0.2188 INCHES NOMINAL INTERNAL KEYWAY DEPTH IN
Corner ShapeCHAMFERED INSIDE RIGHT CORNER
Corner ShapeCHAMFERED OUTSIDE RIGHT CORNER
Corner ShapeCHAMFERED OUTSIDE LEFT CORNER
Keyway Dimension0.6250 INCHES NOMINAL INTERNAL KEYWAY LENGTH IN
Corner ShapeSQUARE INSIDE LEFT CORNER
MaterialSTEEL CORROSION RESISTING OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4720-00-059-3392656-3 INTERCHANGEABLE
Tubing,nonmetallic
Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
6760-00-334-4891 INTERCHANGEABLE
Screw Guide,ejector
4320-00-847-7571H100 INTERCHANGEABLE
Ring,lantern
Circor Naval Solutions Llc Dba Warren Pumps
6240-01-248-7888 INTERCHANGEABLE
Lamp,incandescent
Cross-Reference Index
Part NumberManufacturer
659Z0252 PRIMARY Circor Naval Solutions Llc Dba Warren Pumps (USA)
R-1038 Circor Naval Solutions Llc Dba Warren Pumps (USA)
55-22389-20 Euramco Safety Inc (USA)
999R0343PC21 Circor Naval Solutions Llc Dba Warren Pumps (USA)
N18937 Circor Naval Solutions Llc Dba Warren Pumps (USA)
L-2122 Rps-Fl, Inc. Dba Rps Inc (USA)
Related Parts
4720-00-059-3392INTERCHANGEABLE
TUBING,NONMETALLIC
656-3
6760-00-334-4891INTERCHANGEABLE
SCREW GUIDE,EJECTOR
4320-00-847-7571INTERCHANGEABLE
RING,LANTERN
H100
6240-01-248-7888INTERCHANGEABLE
LAMP,INCANDESCENT

Frequently Asked Questions

What is NSN 4320-00-394-2532?

NSN 4320-00-394-2532 is a Sleeve,shaft,pump, manufactured by Circor Naval Solutions Llc Dba Warren Pumps, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-394-2532?

NSN 4320-00-394-2532 has 6 cross-referenced part numbers: 659Z0252 (Circor Naval Solutions Llc Dba Warren Pumps), R-1038 (Circor Naval Solutions Llc Dba Warren Pumps), 55-22389-20 (Euramco Safety Inc), 999R0343PC21 (Circor Naval Solutions Llc Dba Warren Pumps), N18937 (Circor Naval Solutions Llc Dba Warren Pumps) and 1 more.

What NSN replaces 4320-00-394-2532?

There are 4 known substitutes for 4320-00-394-2532: 4720-00-059-3392, 6760-00-334-4891, 4320-00-847-7571 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 659Z0252?

Key specifications for 659Z0252: Left Internal Flange Width: 0.5625 INCHES NOMINAL IN; Body Inside Diameter: 2.6250 INCHES NOMINAL IN; Overall Length: 9.0000 INCHES NOMINAL IN; Left Internal Flange Hole Diameter: 1.7656 INCHES NOMINAL IN. 13 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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